Metal Gear Solid V - FOB Soldier Talks to Guard Dog

Many people know that the idea of having guard dogs in MGSV was removed from the game, along with audio of soldiers giving commands to guard so I thought. In hiding from FOB guards, I was already hearing audio I had never heard before, but was very surprised when one of the soliders inexplicably uses dialogue that only makes sense if he were talking to a guard dog. Turn on the Closed Captioning because I play the game without subtitles. But, I assure you I did not add any dialogue to this clip deceptively. This was recorded on the PS4 version.